On Thu, Oct 01, 2015 at 02:42:15PM -0400, Ian Stakenvicius wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Since this conversation is now technical rather than news-item > related, I've changed to a new thread. > > On 01/10/15 02:17 PM, J. Roeleveld wrote: > > On 1 October 2015 17:49:15 CEST, Mike Gilbert > > <flop...@gentoo.org> wrote: > >>>>>>>> On 28/09/15 06:58 PM, William Hubbs wrote: > >>>>>>>>> Also, we are dropping the use of the -O switch > >>>>>>>>> for mount/umount -a. This is being dropped > >>>>>>>>> because it is util-linux specific and not > >>>>>>>>> compatible with busybox. > >>>>>>>> > >> > >> The _netdev option is really there to support things like > >> iSCSI, where you are mounting a filesystem like ext4 from a > >> block device which requires network connectivity. > >> > >> I think some changes are needed here, because this change to > >> localmount is quite like to break this usage. > > > > All, > > > > I had a thought. Not sure if this is possible and if it is, it > > would mean a change to the fstab for people using iSCSI. > > > > 1) Add an udev rule to name iSCSI devices differently. (Currently > > sd??, maybe to something like scs??) 2) Have 'localmount' ignore > > those entries in fstab. 3) Have 'netmount' (or similar) mount > > those entries. > > > > I haven't looked into the current scripts yet, so if this doesn't > > make any sense at all, let me know. I will investigate this more > > over the weekend. > > > > At this point, we need to verify the whole reason for its removal is > actually accurate -- it seems it was dropped due to bug 468600, > which is about -O [no]_netdev not being recognized by busybox mount. > However, there are comments in the bug and notes in busybox > documentation which seems to indicate that -O support has been in > busybox since 1.20.2, and current stable is 1.23.1-r1.. If the > issue is still confirmed, then we can look into alternative methods > of handling iscsi.
The original plan was to move to a point where everyone puts _netdev in their fstab for network mounts on Linux so that we don't have to track file system types like we do in OpenRC right now. On Linux, mount -a -O _netdev would mount all network file systems and umount -a -O _netdev would unmount them. On busybox, the last time I checked, umount -a doesn't support -O at all. I'm thinking the best way to handle iscsi, since it requires network connectivity, would be to just have nofail on the fstab entries for it instead of _netdev, that is if iscsi can pick up the mounts after network connectivity comes up. William
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